Installation

3.6 Mobile use of the DR 2800 for field analysis

If the DR 2800 spectrophotometer is used to carry out field analyzes, it may be necessary to take a number of measures to compensate for the fluctuating ambient light conditions.

You should take the measures described below if the following warning is displayed after you take a measurement:

Error: Too much ambient light! Move device into shade or close the lid!

General measure:

Shield the instrument from the sun by standing so that your shadow falls on it, and carry out the measurement again. If the warning appears again, take the following measures.

Measures:

Measurements in a 10 mL round cuvette/cell, a rectangular cuvette/cell or AccuVac Ampules

Close the lid of the cuvette compartment and carry out the measurement.

Measurements in a 13 or 16 mm round cuvette/vial or a 25 mL square cuvette/cell

To obtain consistent measurement conditions in all weather conditions, place the Protective Cover on the open cuvette/cell compartment (see Figure 9 Position the Protective Cover on page 20) and carry out the measurement.

Important Note: When you carry out measurement in 25 mL square cuvettes/cells, take care that there is no adapter in the Protective Cover.

The enclosure rating of the photometer increases from IP41 to IP42 when the Protective Cover is in place.

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Hach user manual Mobile use of the DR 2800 for field analysis